January weather forecast in Skien

January in Skien is the snowiest and the most freezing month of the year. In January, the weather in Skien is typically freezing. Average daily high temperature in January is about 1 degree below zero. On average, Skien has 14 snowy, 7 cloudy, 6 sunny, 3 rainy, and 1 partly cloudy day in January. The snowfalls are usually moderate.